Semgrep

Semgrep — Technical Overview

Semgrep is an open-source, static application security testing (SAST) engine that combines rule-based pattern matching with AI-assisted analysis to deliver SAST, software composition analysis (SCA), and secrets scanning in a single platform. Founded in 2019, the engine operates on a syntax-aware AST (abstract syntax tree) matching model, enabling precise, low-noise detection with 80% fewer false positives compared to traditional tools.

Core capabilities:

• SAST — Rule-based and AI multimodal detection across source code
• SCA — Supply chain vulnerability analysis for open-source dependencies
• Secrets scanning — Detection of hardcoded credentials and sensitive values
• Malware Firewall — Open-source malware protection for package ecosystems

Deployment & integration:

• Self-hostable or SaaS
• API available for programmatic access and automation
• CLI-first design; integrates natively into CI/CD pipelines (GitHub Actions, GitLab CI, Bitbucket Pipelines, Azure DevOps)
• IDE plugins for VS Code and JetBrains; AI coding environment support for Cursor and Replit
• Ecosystem integrations: Jira, Slack, Palo Alto Networks, Sysdig, StackHawk

Open source: The core engine and a community rules registry are open source (16,873 GitHub stars).

Pricing: Freemium. Free tier supports up to 10 repos, 10 contributors, and 60 AI credits. Teams plan starts at $30/month/contributor for Code (SAST) or Supply Chain (SCA), and $15/month/contributor for Secrets. Enterprise plan available with custom pricing.